perf kmem: Make it work again on non NUMA machines

The commit '2814eb0 perf kmem: Remove die() calls' disabled 'perf kmem'
command for machines without numa support. It made the command fail if
'/sys/devices/system/node' dir wasn't found.

Skipping the numa based initialization in case the directory is not
found and continue execution.

Signed-off-by: Jiri Olsa <[email protected]>
Cc: Corey Ashford <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index c2dff9cb1f2ce1ac150401d7b859229beb53998e..9b5f077fee5b1b65a4e51b48ef1af0727b8c134b 100644 (file)
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -101,7 +101,7 @@ static int setup_cpunode_map(void)
 
        dir1 = opendir(PATH_SYS_NODE);
        if (!dir1)
-               return -1;
+               return 0;
 
        while ((dent1 = readdir(dir1)) != NULL) {
                if (dent1->d_type != DT_DIR ||